Combinational Circuits and Infinite Possibilities.

1. A multiple output circuit has 4 items going into the combinational circuit and 4 lines exiting. However, the map of the circuit has 2(not gates) and 4 and gates and 1 or gate. All of the lines enter and exit all the gates some twice.

2. x1 & x2 start into the one and gate, then go out to 1 y line. This I understand!! Easy as pie, but when they both jog into the or gate and through a not gate then back to a and gate..I am so confused.